Bài 1. Liệt kê các phần tử của tập hợp sau:

a) A = {x Î N | x < 6} b) B = {x Î N | 1 < x £ 5}

c) C = {x Î Z , |x| £ 3} d) D = {x Î Z | x2 - 9 = 0}

e) E = {x Î R | (x - 1)(x2 + 6x + 5) = 0} f) F = {x Î R | x2 - x + 2 = 0}

g) G = {x Î N | (2x - 1)(x2 - 5x + 6) = 0} h) H = {x | x = 2k với k Î Z và -3 < k < 13}

i) I = {x Î Z | x2 > 4 và |x| < 10} j) J = {x | x = 3k với k Î Z và -1 < k < 5}

k) K = {x Î R | x2 - 1 = 0 và x2 - 4x + 3 = 0} l) L = {x Î Q | 2x - 1 = 0 hay x2 - 4 = 0

III. Make questions for underlined part of the sentences.
1. They didn’t have a TV because it was too expensive.
 _____________________________________________________________________________
2. My Dad takes me to school everyday.
 _____________________________________________________________________________
3. My family usually watches TV in the evening.
 _____________________________________________________________________________
4. We are borrowing money to buy a house.
 _____________________________________________________________________________
5. She is Vietnamese.
 _____________________________________________________________________________
6. Mary went fishing almost every week.
 _____________________________________________________________________________
7. It takes me about 5 minutes to walk to school. 
 _____________________________________________________________________________
8. Her younger brother would like to see a cowboy movie.
 _____________________________________________________________________________
9. She has seen this film three times.
 _____________________________________________________________________________
10. I had gone to the movies before I went home.
 _____________________________________________________________________________

 những chứ in nghiêng là những chữ

 gạch chân

III. Make questions for underlined part of the sentences.
1. They didn’t have a TV because it was too expensive.
 _____________________________________________________________________________
2. My Dad takes me to school everyday.
à _____________________________________________________________________________
3. My family usually watches TV in the evening.
à _____________________________________________________________________________
4. We are borrowing money to buy a house.
à _____________________________________________________________________________
5. She is Vietnamese.
à _____________________________________________________________________________
6. Mary went fishing almost every week.
à _____________________________________________________________________________
7. It takes me about 5 minutes to walk to school. 
à _____________________________________________________________________________
8. Her younger brother would like to see a cowboy movie.
à _____________________________________________________________________________
9. She has seen this film three times.
à _____________________________________________________________________________
10. I had gone to the movies before I went home.
à _____________________________________________________________________________

III. Make questions for underlined part of the sentences.
1. They didn’t have a TV because it was too expensive.
à _____________________________________________________________________________
2. My Dad takes me to school everyday.
à _____________________________________________________________________________
3. My family usually watches TV in the evening.
à _____________________________________________________________________________
4. We are borrowing money to buy a house.
à _____________________________________________________________________________
5. She is Vietnamese.
à _____________________________________________________________________________
6. Mary went fishing almost every week.
à _____________________________________________________________________________
7. It takes me about 5 minutes to walk to school. 
à _____________________________________________________________________________
8. Her younger brother would like to see a cowboy movie.
à _____________________________________________________________________________
9. She has seen this film three times.
à _____________________________________________________________________________
10. I had gone to the movies before I went home.
à _____________________________________________________________________________

III. Make questions for underlined part of the sentences.
1. They didn’t have a TV because it was too expensive.
à _____________________________________________________________________________
2. My Dad takes me to school everyday.
à _____________________________________________________________________________
3. My family usually watches TV in the evening.
à _____________________________________________________________________________
4. We are borrowing money to buy a house.
à _____________________________________________________________________________
5. She is Vietnamese.
à _____________________________________________________________________________
6. Mary went fishing almost every week.
à _____________________________________________________________________________
7. It takes me about 5 minutes to walk to school. 
à _____________________________________________________________________________
8. Her younger brother would like to see a cowboy movie.
à _____________________________________________________________________________
9. She has seen this film three times.
à _____________________________________________________________________________
10. I had gone to the movies before I went home.
à _____________________________________________________________________________

II. Give the correct form of the words in the brackets.
1. I found the talk both informative and ___________________. (entertain)
2. Local ____________________ are listed in the newspaper. ( entertain)
3. Thousands of young people are facing long-term ____________________. (employ)
4. For the past three years he has been ____________________ as a firefighter. (employ)
5. I had applied for the position, and the ___________________ promised to offer it to me. (employ)
6. Careful _____________________ for the exam is essential. (prepare)
7. His mistake was due to youth and ____________________. (experience)
8. He's very ____________________ in looking after animals. ( experience)
9. We experienced a ___________________ evening with friend. (relax)
10. I’m feeling more ____________________ about the future now.(relax)
11. Police are investigating the ___________________ of a young woman.(appear)
12. We stood up upon the ____________________ of the guest-of-hour. (arrive)
13. _____________________ qualified staff will give you the advice you need.( profession)
14. ___________________, there are very few recorded cases of such attacks.(interest)
15. Our survey produced some ___________________  results.( interest)

I. Complete the sentences with words in the box.

1. The police gave him protection for his own ________________.

2. How many times do I have to ask you to pay __________________?

3. The company made hundreds of ___________________ redundant.

4. The store was __________________ with shoppers.

5. The show brought ___________________ to millions of viewers.

6. She listens to classical music for __________________.

7. Cinema is a medium of mass __________________.

8. He can calculate very quickly. He has an amazing ability to solve ____________________ problems.

9. In 1963 he was appointed __________________ of history.

10. Dang Thai Son is a Vietnamese pianist with an ______________________  reputation.
II. Give the correct form of the words in the brackets.
1. I found the talk both informative and ___________________. (entertain)
2. Local ____________________ are listed in the newspaper. ( entertain)
3. Thousands of young people are facing long-term ____________________. (employ)
4. For the past three years he has been ____________________ as a firefighter. (employ)
5. I had applied for the position, and the ___________________ promised to offer it to me. (employ)
6. Careful _____________________ for the exam is essential. (prepare)
7. His mistake was due to youth and ____________________. (experience)
8. He's very ____________________ in looking after animals. ( experience)
9. We experienced a ___________________ evening with friend. (relax)
10. I’m feeling more ____________________ about the future now.(relax)
11. Police are investigating the ___________________ of a young woman.(appear)
12. We stood up upon the ____________________ of the guest-of-hour. (arrive)
13. _____________________ qualified staff will give you the advice you need.( profession)
14. ___________________, there are very few recorded cases of such attacks.(interest)
15. Our survey produced some ___________________  results.( interest)